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A certain test used to determine if an athlete is using banned PED's has a sensitivity of 88% and a specificity of 94%. A study suggests that approximately 25% of baseball players use PED's. Make a chart of the expected test results if 1000 baseball players are tested.

A) Of those who tested positive, what perecent were falsely accused??
B) Of those who tested negative, what percent actually use PED's???

Answer :

MissPhiladelphia
If you are given the banned PED's with a sensitivity of 88% and a specificity of 94% and then a study suggests that approximately 25% of baseball players use PED's. The answers would be:

A) Of those who tested positive, there are 44 percent who were falsely accused.
B) Of those who tested negative, there are 55 percent who actually use PED's

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